Sundance® MicroClean® Ultra Outer Filter (6473-165) Spa Algaecide Shock: Add 2 tablespoons or

Shock: Add 2 tablespoons or 1 ounce of this product for every 500 gallons of water

Stain & Scale Control removes stains caused by dissolved iron

8 add 2 ounces (4 tablespoon) per every 500 gallons of spa water

drain the water and start fresh with Spa Marvel Water Treatment & Conditioner

Sundance® MicroClean® Ultra Outer Filter (6473-165) Spa Algaecide Shock: Add 2 tablespoons orSundance Spas MicroClean Ultra Outer Filter, Part #6472 165 Outer filter only, inner filter sold seperately, Part #6473 164 Works with the following models: All 880 Series 2009+ All 850 and 880 Series 2005 2008 2009+ Maxxus , Optima , Cameo , Majesta , Altamar , Marin , Capri Original Sundance Parts, No Generics.